Year	DOD, current US$
1974	0
1975	1475000
1976	2200000
1977	2259947.9
1978	4580012.9
1979	6290368.6
1980	5783223.3
1981	7475541.8
1982	6344445.8
1983	7876641.6
1984	9762436.2
1985	10932638.6
1986	10118736
1987	8215460.1
1988	3833899.3
1989	1613788.5
1990	835101.4
1991	226007.9
1992	0
1999	1567406.4
2000	1487923.2
2001	1435185.7
2002	1552571.8
2003	1696977.7
2004	1773537.4
2005	1632226.3
2006	1718024.8
2007	1804645.5
2008	1758988.3
2009	26479908.2
2010	26012702.2
2011	25932300.8
2012	25960169.2
2013	34944176.6
2014	32874834.8
2015	29836165
2016	27385382.2
2017	27359042.8
2018	24298519.5
2019	20951190.4
2020	43483145.3
2021	62363102.3
2022	57755957.8